I try to parse line by line within a text file in Python , but it just can parse first line, it can not read from second line

Question

My Text file 'test.txt' looks like;

hostname Switch

network 192.168.8.0 255.255.255.0

===================================================

My python coding "TextFileParse.py";

import os

f = open('test.txt', 'r')

while 1:

lines = f.readlines()

for line in lines:
    item = line.split()
    print(line)
    name = item[item.index('hostname')+1]
    nw = item[item.index('network')+1]
    print(name, nw)  

f(close)

The result message;

hostname Switch

Traceback (most recent call last): File "D:\TextFileParse.py", line 15, in nw = item[item.index('network')+1] ValueError: 'network' is not in list

How can I read the index from second line? I am not Program expert, just beginner.

Answer 1

f.readlines() reads every line of the file at a time. You have the program searching for hostname and network , but both aren't in each line of the file. You could try:

try:
    name = item[item.index('hostname')+1]
    print(name, end=" ")
except ValueError:
    nw = item[item.index('network')+1]
    print(nw)